T660, Heavy Duty Trucks - Conventional Trucks w/ Sleeper, Cummins ISX, 13 Spd, Nice Clean Kenworth,Double bunk, 13 speed transmission, navigation, and much more. Extensive repair history on this truck with paperwork. Call Kurt, Lee, Steve or Clint for more information. 1-800-777-2440, 450 Horse Power, Air Ride Suspension, Wheels, 242 Wheel Base, LP 22.5, Tandem Axle, Ratio, 70 Sky Rise Pro Sleeper